This behavior was also observed in New York Cab drivers in the paper LABOR SUPPLY OF NEW YORK CITY CABDRIVERS:
ONE DAY AT A TIME
https://www.cmu.edu/dietrich/sds/docs/loewenstein/NYCCabdriv...
> ... Our interpretation of these ndings is that cabdrivers (at least inexperi- enced ones): (i) make labor supply decisions “one day at a time” instead of inter- temporally substituting labor and leisure across multiple days, and (ii) set a loose daily income target and quit working once they reach that target